EP4127497A1 - Radsatzlager für ein schienenfahrzeug und schienenfahrzeug - Google Patents
Radsatzlager für ein schienenfahrzeug und schienenfahrzeugInfo
- Publication number
- EP4127497A1 EP4127497A1 EP21712013.8A EP21712013A EP4127497A1 EP 4127497 A1 EP4127497 A1 EP 4127497A1 EP 21712013 A EP21712013 A EP 21712013A EP 4127497 A1 EP4127497 A1 EP 4127497A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- rolling
- rolling elements
- rows
- rolling element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 125
- 239000004519 grease Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000010432 diamond Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0005—Hubs with ball bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0078—Hubs characterised by the fixation of bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B37/00—Wheel-axle combinations, e.g. wheel sets
- B60B37/10—Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2380/00—Bearings
- B60B2380/10—Type
- B60B2380/12—Ball bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2380/00—Bearings
- B60B2380/70—Arrangements
- B60B2380/77—Diameters of bearings at opposite ends of hub
- B60B2380/772—Identical diameters of bearings at opposite ends of hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/30—Angles, e.g. inclinations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/30—Angles, e.g. inclinations
- F16C2240/34—Contact angles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/10—Railway vehicles
Definitions
- the invention relates to a wheelset bearing provided for use in a rail vehicle according to the preamble of claim 1.
- the invention further relates to a rail vehicle with at least one such wheel set bearing.
- Such a wheelset bearing is known for example from DE 102006 015 289 A1.
- the known wheelset bearing is a two-row Kegelrol lenlager with two inner rings and a single outer ring.
- a support ring for axially supporting the inner rings is provided.
- Another wheelset bearing designed as a tapered roller bearing is known from DE 10 2017 119249 A1.
- a generator unit is provided on the wheelset bearing.
- the stator of the generator unit is connected to a cover which covers the wheelset bearing on one end of the wheelset shaft.
- DE 101 28 861 A1 discloses a wheelset bearing which is designed as a two-row cylinder roller bearing.
- a damping element is arranged between the cylindrical roller bearing and the wheelset shaft of the rail vehicle, so that vibrations emanating from the rail wheel only reach the roller bearing, i.e. the cylindrical roller bearing, in a damped form.
- EP 2 276 658 B1 a measuring bearing for a wheel set of a rail vehicle is known.
- Conceivable roller bearing types mentioned in EP 2 276 658 B1 include ball bearings, barrel roller bearings and needle bearings.
- DE 10 2017 112 338 A1 describes a double row angular contact ball bearing.
- DE 10 2007 049 982 A1 discloses a roller bearing with two angular contact ball bearings arranged at an angle to one another in an O arrangement.
- DE 10 2013224 545 A1 describes a wheel bearing of a vehicle with four angular contact ball bearing units.
- the invention is based on the object of specifying a wheel set bearing for a rail vehicle which has been further developed compared to the prior art mentioned and which is characterized by a particularly favorable ratio between possible useful life and maintenance effort.
- the wheelset bearing comprises a roller bearing arrangement with three bearing rings, namely two inner rings provided for connection to a wheelset shaft and an outer ring provided for connection to a housing.
- the roller bearing arrangement is designed as a four-row angular contact ball bearing in an O-arrangement, two rows of rolling elements contacting a first inner ring for receiving axial forces in a first direction and two rows of rolling elements contacting a second inner ring for absorbing forces in the opposite axial direction.
- Either the inner rings or the outer ring have a single-shouldered rolling element raceway to accommodate each row of rolling elements.
- the single-shouldered rolling element raceway is, seen in cross section along a central axis through the wheelset bearing, by a radial line perpendicular to the central axis and through a rolling element center of each rolling element of a Wälzkör per series, is limited.
- the rolling element raceway extends from the radial line and from the rolling element center point in the direction of the shoulder over an angle in the range from 35 ° to 75 ° to a reference point with a constant radius. From the reference point, the rolling element raceway is formed following a tangent applied to the rolling element raceway at the reference point.
- the rolling element raceway extends from the radial line and from the rolling element center point in the direction of the shoulder over an angle in the range from 35 ° to 50 ° up to the reference point.
- the rolling element raceway is thus, seen in cross section along a central axis through the wheelset bearing, formed following a tangent applied to the rolling element raceway at the reference point from the reference point.
- the rolling element raceway that guides the rolling elements thus has a constant radius in the area between the radial line and the reference point and no constant radius in the outer area in the direction of the shoulder, but a tangential outlet following the tangent applied. This ensures that edge stresses are avoided in the case of higher axial loads, such as those that can occur in rail applications, e.g. due to rail joints, since the contact ellipse does not "run up" onto a sharp-edged transition, but can expand elliptically in the tangential run-out. Edge tension can thus be avoided. This improves the frictional behavior and extends the service life of the axlebox bearing.
- the tangential outlet from the reference point is still at least 2 mm long, in particular 2 to 10 mm long.
- Multi-row angular contact ball bearings in an O arrangement are generally characterized by the fact that the pressure lines in their entirety describe a geometric shape similar to the letter “0” - more precisely: in the manner of a diamond.
- Multi-row bearings in an O-arrangement are also to be distinguished from multi-row bearings in an X arrangement, in which the pressure lines intersect - as in the case of the letter "X". In the present case, that is, in the four-row roller bearing arrangement, two nested diamonds are formed by the pressure lines of the bearing.
- the four-row angular contact ball bearing of the wheelset bearing according to claim 1 provides a type of roller bearing which is characterized by particularly low friction compared to cylindrical roller bearings and tapered roller bearings. Surprisingly, it has been shown that despite the design-related lack of line contacts, as is the case with tapered roller bearings and cylindrical roller bearings, a load-bearing capacity sufficient for use in rail vehicles can be achieved using the available installation space. In a preferred embodiment, there is no intermediate ring between the inner rings of the wheelset bearing. Rather, the inner rings preferably butt directly against one another.
- the two rows of rolling elements are formed with particularly little, in particular no, axial play. That is, the outer rows of rolling elements are preferably formed by rolling elements, that is, balls, the diameter of which is at least 5% and a maximum of 25% larger, preferably 12 to 17% larger, than the diameter of the rolling bodies of the two inner rows of rolling elements. These proportions contribute to a uniform pressure at a low level, with a uniform contact pattern is given in normal operation, that is, when used in a rail vehicle.
- the wheel set bearing according to the invention is mainly designed to absorb radial forces and to a lesser extent to absorb axial forces. Radial and axial forces can be absorbed by all rows of rolling elements.
- the pressure angle of the two outer rows of rolling elements does not differ from the pressure angle of the two inner rows of rolling elements by more than 6 °.
- the pressure angle of each row of rolling elements is preferably at least 24 ° and at most 36 °, for example uniformly 30 °.
- Groove-shaped rolling element raceways are preferably formed by the inner rings in a manner that is suitable for the demands and is easy to assemble, whereas the rolling body raceways of the outer ring are single-shouldered and thus only offer support in a single axial direction.
- the raceway of the outer ring goes over into a cylindrical inner circumferential surface of the outer ring, which means a tangential run-out of the rolling element raceway.
- the outer ring forms groove-shaped rolling element raceways
- the rolling element raceways of the inner rings are single-shouldered.
- Embodiments can also be implemented in which the run-out of the rolling element raceway, i.e. that surface section opposite the shoulder of the raceway, describes a conical surface, with the corresponding cone widening in the direction of the end face of the outer ring closest to the rolling element raceway.
- the axial play of the two outer rows of rolling elements is less than the axial play of the two inner rows of rolling elements of the twin tandem bearing.
- the axial play on the two inner rows of rolling elements is more than 10 ⁇ m, assuming a wheel set bearing temperature of 20 ° C and the wheel set bearing has not yet been mounted on a wheel set shaft at the place of use .
- the rolling element arrangement is particularly suitable for the absorption of Kippbe loads.
- each row of rolling elements can be passed through a cage in a manner known per se.
- the entire roller bearing arrangement can be sealed in a manner known per se, with low-friction connections preferably being used.
- a grease is preferably used as the lubricant. Thanks to the point contacts between the rolling elements and the bearing rings, only a moderate increase in temperature occurs when the wheelset bearing is in operation, which means that there is little fat stress.
- Fig. 2 shows a detail of the wheelset bearing.
- a wheel set bearing designated as a whole by 1, is used to store a wheel set shaft 2 in a supporting structure 3 of a rail vehicle, not shown separately.
- the wheelset bearing 1 comprises a roller bearing assembly 7 with two inner rings 4, 8 and a single outer ring 9.
- An end cap 11 which is screwed to the end face of the wheelset shaft 2 with screws 12, supports the entire rolling bearing arrangement 7 in an axial direction.
- the screws 12 are inserted through bores 14 in the end cap 11. With 13 seals for sealing the roller bearing arrangement 7 on both sides are designated.
- the roller bearing assembly 7 is lubricated with a grease as a lubricant.
- the roller bearing arrangement 7 is constructed as a four-row angular contact ball bearing in the form of a twin tandem bearing.
- the individual rows of rolling elements are labeled 16, 17, 18, 19.
- the rows of rolling elements 16, 17 roll on the inner ring 4 located on the left in the arrangement according to FIG. 1 and the rows of rolling elements 18, 19 roll on the bearing channel ring 8 on the right.
- the rolling element raceways of the inner rings 4, 8 are marked with 21, the total of four rolling element raceways of the outer ring 9 with 22 be.
- the rolling elements 10, 23 of each row of rolling elements 16, 17, 18, 19 are guided in a cage 20.
- the rows of rolling elements 16, 17 support the wheelset shaft 2 with respect to the bearing housing 6 in a first axial direction.
- the rows of rolling elements 18, 19 serve to support in the opposite axial direction.
- the entire rolling bearing arrangement 7 is mirror-symmetrical to a plane placed between the bearing trough rings 4, 8.
- the diameter of the rolling elements 10 of the two inner rows of rolling elements 17, 18, labeled D1 is smaller than the diameter of the rolling elements 23, labeled D2, of the outer rows of rolling elements 16, 19 , 17, 18, 19 by definition represents the pitch circle of the relevant row of rolling elements 16, 17, 18, 19.
- the pitch circle diameter of the inner rows of rolling elements 17, 18 is smaller than the pitch diameter of the outer rows of rolling elements 16, 19.
- the total of four raceways 21 provided by the inner bearing rings 4, 8 are each formed in the shape of a groove.
- the rolling element raceways 22 of the outer ring 9 are each designed as single-shoulder raceways, which have the shape of a half ben groove have formed.
- ver different tangents T1, T2 are applied to the rolling element raceways 22, which are each placed through a reference point BP1, BP2.
- the reference point BP2 lies in each case on a radial line RL, which is laid through the rolling element center WM and lies in a plane to which the central axis 5 of the rolling bearing arrangement 7 represents a surface normal.
- the Tan gent T2, on which the reference point BP2 lies is aligned parallel to the axis of rotation of the roller bearing arrangement 7, that is to say to the central axis 5 of the wheelset shaft 2.
- the single-shoulder shape of the rolling element raceway 22 is expressed in that all tangents that can be placed on the raceway 22 are inclined in one and the same sense with respect to the central axis 5 or, in the extreme case, which is the case with the tangent T2, parallel are spaced from the central axis 5.
- the tang T1 on which the reference point BP1 lies is located near the shoulder. Starting from the radial line RL and the rolling element center point WM, the reference point BP1 lies here on a line which encloses an angle ⁇ 1, ⁇ 2 of approximately 48 ° with the radial line RL.
- the rolling element raceway 22 is formed following a tangent T1 applied to the rolling element raceway 22 at the reference point BP1.
- the rolling element raceway 22, which guides the rolling elements 10, 23, does not have a constant radius in the outer area in the direction of the shoulder, but rather a tangential run-out following the tangent T1. This ensures that edge stresses are avoided in the case of higher axial loads, such as those that can occur in rail applications, e.g. due to rail joints, since the contact ellipse does not "run up" onto a sharp-edged transition, but can expand elliptically in the tangential run-out.
- the tangent T2 is vorgese hen, which specifies the course of the rolling element raceway 22 and which should also allow an unhindered spread of the contact ellipse. Edge tension can thus be avoided. This improves the friction behavior and extends the life of the axlebox bearing.
- roller bearing rows 17, 18 are also located in single-shoulder roller bearing raceways 21 in the area of the inner rings 4, 8.
- a tangent T3 is laid out, which specifies the course of the rolling element raceway 21 and which should also allow an unhindered spread of the contact ellipse.
- Only the roller bearing Rows 16, 19 are located in the area of the inner rings 4, 8 in double-shouldered roller bearing tracks 24.
- Pressure lines denoted by DL are laid through the rolling element centers WM and the contact points on the bearing rings 4, 8, 9 according to the usual definition.
- the pressure angles denoted by a1, a2, which are given on the outer rows of rolling elements 16, 19 or on the inner rows of rolling elements 17, 18, are uniformly 30 ° in the exemplary embodiment.
- the assembly direction denoted by MR indicates the direction in which the outer ring 9 is to be shifted with respect to the inner ring 8 during the assembly of the roller bearing arrangement 7.
- the rolling bodies 23 of the outer rows of rolling bodies 16, 19 are arranged without play in the axial direction between the inner ring 4, 8 and the outer ring 9.
- the inner rows of rolling elements 17, 18 have a play of more than 10 pm, which is also related to the axial direction.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020108770.5A DE102020108770A1 (de) | 2020-03-30 | 2020-03-30 | Radsatzlager für ein Schienenfahrzeug |
PCT/DE2021/100157 WO2021197531A1 (de) | 2020-03-30 | 2021-02-17 | Radsatzlager für ein schienenfahrzeug und schienenfahrzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4127497A1 true EP4127497A1 (de) | 2023-02-08 |
EP4127497B1 EP4127497B1 (de) | 2024-07-17 |
Family
ID=74874586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21712013.8A Active EP4127497B1 (de) | 2020-03-30 | 2021-02-17 | Radsatzlager für ein schienenfahrzeug und schienenfahrzeug |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230124448A1 (de) |
EP (1) | EP4127497B1 (de) |
CN (1) | CN115135891A (de) |
DE (1) | DE102020108770A1 (de) |
WO (1) | WO2021197531A1 (de) |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8405082U1 (de) | 1984-02-20 | 1985-01-24 | Jacob, Werner, 6000 Frankfurt | Doppel-Schrägkugellager |
DE19839481C2 (de) | 1998-08-29 | 2003-06-05 | Ina Schaeffler Kg | Verteilergetriebe für ein Kraftfahrzeug |
DE10128861A1 (de) | 2001-06-15 | 2002-12-19 | Ina Schaeffler Kg | Radsatzlager |
JP4251314B2 (ja) * | 2002-07-16 | 2009-04-08 | Ntn株式会社 | 車輪用軸受装置 |
DE10331936B4 (de) * | 2003-07-15 | 2017-01-26 | Schaeffler Technologies AG & Co. KG | Radlagereinheit in Schrägkugellagerausführung |
DE202004001454U1 (de) * | 2004-01-31 | 2004-04-01 | Ab Skf | Zweireihiges Wälzlager |
US20090129713A1 (en) * | 2005-07-13 | 2009-05-21 | Junichi Hattori | Angular Contact Ball Bearing and Joint Assembly for a Robotic Arm |
DE102006015289A1 (de) | 2006-04-01 | 2007-10-04 | Schaeffler Kg | Wälzlager |
DE102006025551A1 (de) | 2006-06-01 | 2007-12-06 | Schaeffler Kg | Mehrreihiges axial vorgespanntes Schrägkugellager und Verfahren zu seiner Herstellung |
DE102007049982A1 (de) | 2007-10-18 | 2009-04-23 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Wälzlager, insbesondere zur Lagerung eines Nutzfahrzeugrades |
CN201106625Y (zh) * | 2007-11-13 | 2008-08-27 | 洛阳轴研科技股份有限公司 | 一种高速铝箔轧机用止推轴承 |
DE102008016592A1 (de) | 2008-03-31 | 2009-10-01 | Bombardier Transportation Gmbh | Messlager |
CN201268193Y (zh) * | 2008-09-11 | 2009-07-08 | 湖北新火炬科技股份有限公司 | 一种重载球轮毂轴承单元 |
JP5570297B2 (ja) * | 2010-05-20 | 2014-08-13 | Ntn株式会社 | 車輪用軸受装置 |
DE102010055405A1 (de) * | 2010-12-21 | 2012-05-10 | Schaeffler Technologies Gmbh & Co. Kg | Radlagereinheit in Schrägkugellagerausführung für hohe Lasten |
DE102013224545B4 (de) | 2013-11-29 | 2021-06-24 | Bayerische Motoren Werke Aktiengesellschaft | Radlager eines Fahrzeugs mit vier Schrägkugellager-Einheiten |
JP2015183747A (ja) * | 2014-03-24 | 2015-10-22 | 株式会社ジェイテクト | 車輪用軸受装置 |
CN105299038A (zh) * | 2015-10-27 | 2016-02-03 | 大连冶金轴承股份有限公司 | 大型、特大型四列圆锥滚子轴承轴向游隙配置方法 |
WO2018194025A1 (ja) * | 2017-04-17 | 2018-10-25 | Ntn株式会社 | 旋回軸受およびその加工方法 |
DE102017112338A1 (de) | 2017-06-06 | 2018-12-06 | Schaeffler Technologies AG & Co. KG | Zweireihiges Schrägkugellager |
DE102017119249A1 (de) | 2017-08-23 | 2018-09-06 | Schaeffler Technologies AG & Co. KG | Generatorsystem für Schienenfahrzeuge |
US20190331167A1 (en) * | 2018-04-25 | 2019-10-31 | Aktiebolaget Skf | Two hybrid ball bearings and a compressor bearing arrangement |
-
2020
- 2020-03-30 DE DE102020108770.5A patent/DE102020108770A1/de active Pending
-
2021
- 2021-02-17 EP EP21712013.8A patent/EP4127497B1/de active Active
- 2021-02-17 WO PCT/DE2021/100157 patent/WO2021197531A1/de unknown
- 2021-02-17 US US17/914,482 patent/US20230124448A1/en active Pending
- 2021-02-17 CN CN202180016234.3A patent/CN115135891A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102020108770A1 (de) | 2021-09-30 |
WO2021197531A1 (de) | 2021-10-07 |
CN115135891A (zh) | 2022-09-30 |
EP4127497B1 (de) | 2024-07-17 |
US20230124448A1 (en) | 2023-04-20 |
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